.初中英语祈使句教案Grammar Focus in Unit 8II. Teaching aimsThe ss can understand the definite of imperative sentence, the forms of it and master the usage of it.III. Teaching key points and difficult points1. The definite of imperative sentence2. The two forms of imperative sentence3. The usage of imperative sentence.IV. Teaching strategies and aids1. Interest Teaching Method2. Cooperative Learning Method 3. Activities4. PPTs and videoV. Teaching procedures:STEP 1. Revision Dance together while singing the song Hands up, hands down STEP 2. Lead in After singing the song, Ill ask ss to sit down. “Sit down , please.”(write down this sentence on the blackboard ). Then ask them to stand up. “ Stand up, please.” Then “Put up your hands”, “Put down”. “Be quiet, please” and so on.(write down these sentences on the blackboard ). Then let ss to read the sentences above together. After reading, Ill tell ss, “This is our new lesson Imperative Sentence.” (Write “Imperative Sentence” on the blackboard.) Then ask ss “Do you know what the Imperative Sentence is and show the answer on the PPT. Step 3. A Guessing Game Show some with pictures on PPT to ss, and let them try to guess out the meanings（ using Imperative Sentences.）1. Turn left.2. Turn right.3. Be quiet, please.4. Keep off the grass.5. Let me help you.6. Dont smoke. ( No smoking.) 7. Dont park your car.8. Dont eat here.9. Dont pick the flowers.10. Dont sleep in class.Then ask the ss to read the sentences together, and try to draw a conclusion of the usage of imperative sentence.祈使句用法口诀： 祈使句，无主语，只要动词就可以； 表示请求或命令，加上please表客气； 如果变成否定句，Dont开头是旋律； NO talking ！是警示，祈使用法要牢记！Step4. Practice Group workThis part will be finished by 2 or 3 students together. They can use the sentences given on PPT.Here is an example.A: (to B) “please open the door.”B： go and open the door.Ill ask some groups to show their jobs, and show my opinions for their performance such as “quite good! Well done! So excellent” and so on.Step 5. Draw a conclusion and consolidationa) Then ask ss to observe the sentences again. Ill help them to draw a conclusion of the forms of imperative sentences. That is, 肯定结构: (Positive forms) 1. Do型 (即:动词原形(+宾语)+其它成分)。 e.g:Please have a seat here.=Have a seat here, please. 有的祈使句在意思明确的情况下,动词可省略。如:This way, please. = Go this way, please. 2. Be型 (即:Be + 表语(名词或形容词)+其它成分)。 e.g Be a good boy! 3. Let型 (即:Let + 宾语 + 动词原形 + 其它成分)。 e.g Let me help you. 否定结构: (Negative forms) 1. Do型和Be型的否定式都是在句首加dont构成。 e.g, Dont forget me! Dont be late for school! 2. Let型的否定式有两种: “Dont + let + 宾语 + 动词原形 + 其它成分” “Let + 宾语 + not + 动词原形 + 其它成分”。 e.g Dont let him go. / Let him not go.。 3. 有些可用no开头,用来表示禁止性的祈使句。 No + n / doing + 其他成分 e.g No smoking! No fishing! b). Consolidation Finish the exercises on PPT. 1.咱们一起玩吧 2.请不要迟到. 3.回答这个问题. 4.请保持安静。 5.不要让我走！ If time permits, finish the exercises on P63, grammar fun time exercise 1 in class.Step 6. Summary祈使句结构总结如下：(Write them on the Bd)肯定：1. Do型 2. Be型 3. Let型否定：1. Dont 型 2. Let型的否定式有两种: “Dont + let + 宾语 + 动词原形 + 其它成分” “Let + 宾语 + not + 动词原形 + 其它成分”。3No 型Step 7. Homework Finish Exercise 2 and 3，on Page 63-64 in your books.